code: def forward(self, x):
      res_layer = getattr(self, f"layer{self.stage + 1}")
      out = res_layer(x)
      return out
  
file_path: mmdetection/mmdet/models/roi_heads/shared_heads/res_layer.py
imports: import warnings
  import torch.nn
  from mmengine.model import BaseModule
  from mmdet.models.backbones import ResNet
  from mmdet.models.layers import ResLayer
  from mmdet.registry import MODELS
label_desc: Use image node_id 2 for calling the ResLayer obj's underlying member method code with example usage: obj.forward(x) and returns: out